// The MIT License (MIT)
//
// Copyright (c) 2019 Hellobike Group
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.

#import "NavigatorPopGestureRecognizerDelegate.h"
#import "UINavigationController+Navigator.h"
#import "UIViewController+WillPopCallback.h"

@implementation NavigatorPopGestureRecognizerDelegate

- (BOOL)gestureRecognizerShouldBegin:(UIPanGestureRecognizer *)gestureRecognizer {
    UIViewController *topViewController = self.navigationController.topViewController;
    if (topViewController.thrio_willPopBlock) {
        return NO;
    }

    if (self.navigationController.viewControllers.count <= 1) {
        return NO;
    }

    if ([[self.navigationController valueForKey:@"_isTransitioning"] boolValue]) {
        return NO;
    }

    self.navigationController.thrio_popingViewController = topViewController;

    return YES;
}

@end
